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Finding the Fourth Proportional to 73,745.91, 101,769.35 and 40,211.91

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Solution

The fourth proportional to 73,745.91, 101,769.35 and 40,211.91 is: 55,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,745.91 : 101,769.35 = 40,211.91 : x
  2. Step 2: Convert to fraction form
    73,745.91/101,769.35 = 40,211.91/x
  3. Step 3: Cross multiply
    73,745.91x = 101,769.35 × 40,211.91
  4. Step 4: Simplify right side
    73,745.91x = 4,092,339,741.90
  5. Step 5: Solve for x
    x = 4,092,339,741.90/73,745.91
  6. Step 6: Final answer
    x = 55,492.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.